1200 - 1229 Prüfung der Schweißeignung

Testing and documentation guideline for the suitability of steel sheet for joining - Part 6: Bonding Publication: July 2024 The test methods specified in this Stahl-Eisen test specification (SEP) describe the procedure to determine the suitability of automotive steel sheets for joining via the process of adhesive bonding (with structural adhesives and anti-flutter adhesives). This SEP is valid for testing the joinability by adhesive bonding of thin steel sheet with a single sheet thickness of up to 3 mm. It does not replace an OEM-specific approval test. For general quality assurance and for verification of laboratory processes it is recommended for each test carried out in accordance with this SEP to test reference specimens with known characteristics additionally.

Test and documentation guideline for the suitability of thin steel sheets for joining - Part 4: MIG brazing Publication: August 2011

Assessment of the weldability of electrical steel coatings on cold-rolled, non-grain orientated, finally annealed electrical steel sheet and strip using the tungsten inert gas (TIG) welding process Publication: June 1995

Determination of the influence of welding conditions on the maximum hardness value in the heat-affected zone of welded joints Publication: January 1986

Determination of the influence of the welding conditions on the toughness in the heat-affected zone of multi-layer joints Publication: January 1986

Determination of the influence of the welding conditions on the toughness in the heat-affected zone of single-pass welds Publication: January 1986

Testing and documentation guideline for the joining suitability of thin steel sheets Parts 1 - 4 Publication: August 2011

Testing and documentation guideline for the joining suitability of thin steel sheets Part 5: MAG welding Publication: December 2020

Testing and documentation guideline for the joining suitability of thin steel sheets - Part 2: Resistance spot welding, 3rd edition, August 2025 The test methods specified in this steel-iron test sheet (SEP) are used to determine the suitability of steel thin sheets in automotive engineering for the resistance spot welding joining process. The test scope and conditions, determination of quality limits, destructive and non-destructive tests, and documentation of the results are described. Example diagrams are included for the test and for analysing the results. - Changes compared to the 2nd edition are listed in a table. Publication of the 3rd edition: August 2025

Testing and documentation guideline for the joining suitability of thin steel sheets Part 1: General information, 2nd edition, November 2024 This first part of the SEP 1220 test sheet series contains the general requirements. It serves as a basis for uniform material characterisation and is intended to standardise the exchange of data between material manufacturers and users. It describes the characterisation of base materials, sampling locations and general test conditions, including recommendations for cyclic testing. The data format for the data exchange of the tests (data header) is explained in detail. Publication: August 2011

The test methods specified in this Stahl-Eisen test specification (SEP) describe the procedure to determine the suitability of automotive steel sheets for joining via the process of projection welding. Exemplarically, a nut with segmented projections is welded to a thin steel sheet. Described are sample preparation, welding equipment and test conditions, determination of quality levels, the test procedure itself (visual testing, thread engagement, weld nut set-down, push-out and pull-out testing, torque testing, metallography), as well as documentation of results. Example diagrams are given for testing and example sheets for the evaluation of results.

Testing and documentation guideline for the suitability of thin steel sheets for joining - Part 3: Laser beam welding. 2nd edition April 2025 The test methods specified in this steel-iron test sheet (SEP) are used to determine the suitability of steel thin sheets in automotive engineering for the laser beam welding joining process. Sample preparation, test conditions, determination of quality limits, the test method itself (continuous and stitched lap joints), destructive and non-destructive tests and documentation of the results are described. Sample diagrams for the test and templates for analysing the results are included. Publication: April 2025